There are almost no grammatical rules when using it.
Objection! There are, and there are quite a lot, to the point of many people thinking that "these are too much to memorize and follow, so they aren't mandatory". Also, ranguage generally fails to match the grammatical case and gender of the words, which almost no native would allow himself to do, however un-educated :3
UPDATE: I have corrected translation a little, to match the description given in PMiSS.
Updated
Magic using the seven elements: Earth, Water, Fire, Wind, Metal, Sun and Moon.
Ranguage.Elemental Eight ManiacsPatchouli is a wizard [sic] known as the brains of the Scarlet Devil Mansion.
They say, she causes and resolves problems in the Mansion.
More ranguage. Seems to be machine-translated.